The original of four Capt'n Nemo's locations in Chicago, the sub shop offers homemade soups and chili in addition to its crispy bread sandwiches. In addition to Italian beef, the eatery offers warm and cold specialty sandwiches like the ham, salami, egg, cheese and pineapple sauce-topped South Sea; and the liverwurst, muenster cheese, salami, egg and sauerkraut-topped Conqueror." It also offers catering. Don't ask what's in the secret sauce; Nemo's won't tell you, but you can buy it in a bottle.
Average cost: <$10